Home / 64,117.12-88,506.32-57,390.88

Finding the Fourth Proportional to 64,117.12, 88,506.32 and 57,390.88

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Solution

The fourth proportional to 64,117.12, 88,506.32 and 57,390.88 is: 79,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,117.12 : 88,506.32 = 57,390.88 : x
  2. Step 2: Convert to fraction form
    64,117.12/88,506.32 = 57,390.88/x
  3. Step 3: Cross multiply
    64,117.12x = 88,506.32 × 57,390.88
  4. Step 4: Simplify right side
    64,117.12x = 5,079,455,082.14
  5. Step 5: Solve for x
    x = 5,079,455,082.14/64,117.12
  6. Step 6: Final answer
    x = 79,221.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.